The St. Louis Rams are uncertain as to whether quarterback Marc Bulger will be able to play against New Orleans on Sunday after the quarterback sprained his right shoulder in Monday night?s game against Indianapolis. "I don't want to assume anything yet, I think that's a hypothetical situation," interim coach Joe Vitt said when asked about possibly losing Bulger. "But I will say this: (backup QB) Jamie Martin was born and raised in this system and knows the system as good as anybody."